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EPDM rubber seals are widely used in various industries due to their excellent weathering resistance and long service life. However, over time, these seals can experience aging, leading to a decrease in their performance and functionality. In this analysis, we will delve into the main causes of EPDM rubber seal aging.

One of the primary factors contributing to the aging of EPDM rubber seals is exposure to UV radiation. EPDM is vulnerable to the damaging effects of sunlight, which can break down the molecular structure of the rubber over time. This degradation results in a loss of elasticity, increased brittleness, and ultimately, reduced sealing effectiveness.

Additionally, EPDM rubber seals can be exposed to harsh environmental conditions, such as extreme temperatures and chemical exposure. High temperatures can accelerate the aging process by causing thermal oxidation, which leads to rubber hardening and surface cracking. Chemical exposure, on the other hand, can cause degradation of the rubber through chemical reactions, resulting in a loss of physical properties and deterioration of the seal's performance.

Furthermore, improper storage and handling can also contribute to the aging of EPDM rubber seals. Exposure to excessive heat, humidity, or direct sunlight during storage can prematurely age the rubber. Additionally, mishandling, such as excessive stretching or compression, can cause physical damage to the seals, leading to accelerated aging.

In conclusion, the aging of EPDM rubber seals is a complex process influenced by various factors, including UV radiation, extreme temperatures, chemical exposure, and improper storage and handling. Understanding these causes allows us to develop strategies and implement measures to extend the lifespan and performance of EPDM rubber seals in various applications.